Steam-turbine.



J. D. FRAIVILLIG.

STEAM TURBINE.

APPLIUATION FILED APR. 10, 1908. 919 ,340. Patented Apr. 27; 1909.

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Q Joke a5 3y o M42? J. D. FRAIVILLIG.

STEAM TURBINE.

APPLICATION FILED APRJIO, 1908.

919,340. Patented Apr. 27, 1909.

3 SHEETS-SHEET 2.

.J. D. FRAIVILLIG 'STEAM TURBINE.

AIPLIOATION FILED APR. 10, 1908.

9 1 9 ,340, Patented 27, 1909.

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l Specification 6f Le e Patent.

Patented April-27,1909.

Application-filedApril 10, 1908. Serial No. 426, 77;

Be it known that I, Josnrii D. .BhaAiviL- L1G, a citizen pf the UnitedStates, residing at Dawn street, in the city of Schenectady, in..thecounty of Schenectady and 'State of New York, have invented anew and.useful Improvement in Steam-Turbine Engines, of which the following'is aspecification.

The object of my invention is to provide an engine in which the bucketsor vanes are so constructed-as to be 'cheaplynmde, readily attached and.removed from the fixed and moving parts of the engine and easilyduphcated or repaired, and thatare of such shape and arrangement astogive thebest iesults.-

The manner in which I accomplish my objectis described in the followingspecification and illustrated inthe accompanying drawings in which:" p

Figure 1 is a vertical central section of the; engine; Fig. 2 isavertical cross section on: the line 2-2', Fig. 1, 'Fig. 3'isa verticalcross section'on the *line3' a"3, Fig.- 1;"Fig. 4' is a cross section:on the line 4+4, Fig. 1; Fig. 5. is a horizontal section on the line55, Fig. 1-; Fig. 6 is a horizontal sectional detail through thediaphragmf Fig. .7is'- a perspective view of a se nientalpart ofthebuckets detached froint e engine; Fig: 8 "is a vertical cross sectional,v'iew -of' one of the'seginental parts, and Fig. 9is'anoth'erperspective view'of one? o=f the segmental partsshowingachange inconstruction from tha't shown in Fig. 7.

In the drawings A indicates the end lates which constitute the base andbearing of the engine. In=theup or part 0 these plates are apertures Aand A for the inlet and outlet of steam. On the inside ofeach plate andforming part thereof is a projecting rin A Secured between these platesis a cyhndrical body B in the interior of which are a series ofprojecting rings B, B and B Attached to each of the rings B and 'B is aring of buckets C constructed in segmental parts as shown in Fig. 7 andsecured to said rings by screws C as shown in Figs. 1 and 3. Attached inthe same way to the ring B is a diaphragm 1) shown in Figs. 1 and 4.Supported in the plates A is a shaft E. Secured on this shaft betweenthe plates A are a series of disks F, F F and F". Attached to theperiphery of each of these disks is a ring of )uckets G secured thereonby the screws G in seginental'parts as shown in Fig. 7 The rings ofbuckets C and G are constructed of a segmental angular flange f H eitherin the :drawing the 'areishown inline.

parts in Figs. 8, and 9. In these flanges are a series "of apertures H:EXtending-Tthroughthese apertures and riveted to the flange, isthefformshown in ig. 7, or in the forth shown end I of'a' bucketwhiehextends in a curved line from edge to edge "of the top H? of the flangeH asshown in Fig. 9. "'Eiveted in the same way to the topofthesebuokets'is a segmental ring J. This ring is of the same width asthe flange Thedisk D secured aperturesare shownin Figs. 4, 5 and 6 andcorrespond in form and direction withflth'e steanrinlet A ,"as showninfFigs, '5 and. 6. Secured to the end plate over the steam inlet A fiea s'teamiitting Afladapted'to support a valve to regulate the admissionof steam.

In the exhaust apertureA in we bpp'osite "on the ringB by the'screws Dis provided with three'series of ap'erturesfD These end plate is anexhaust pipe A andbnth'e shaft E is a pulley E and collars E "adapted ito be secured on the shaft. The teamin- Ilet A and "exhaust outlet'fAeictend through the inside ring A in the end: plates as hown in Fig. 1'at any point in the circle, butin the *To' assem le the partsdes'cribedtthe segmental parts of the bu'ck'et ring Gare' securedinserted in the left e'ndplateand the disks placed and secured'thereon,theconcave face of the buckets in each ring iacin in the same"with the diagonal opening eff the steam inlet A fas shown in '55"lherightendplat'e is then placed" on the" shaftand the collar E securedthereon. When thus A the hubs of the disks F and F are in run ningcontact with said plates, and the flange H and rin J of the bucket ringG on the disks F an F should be in running contact with the rings A onthe plates A as shown in Fig. 1. The bucket rings C are secured to therings B and B inside the cylinder B, the concave faces of the bucketsfacing in the opposite direction of those in the rings G as showii inFig. 5. The diaphragm 1) is secured to the ring B with the diagonalapertures D in the direction to deliver the steam against the concavelaces oi the buckets G in the disk F When thus mounted on the cylinderas described,- the cylinder being. in two or more sections, it is placedbetween the end plates and secured thereto and the parts securedtogether in any suitable manhearing placed on the shaft E between theend plates flected from the buckets in the ring ner. When secured, therings C and diahragm D fit between the rings G as shown 1n Figs. 1 and5. When a supply of steam is admitted through the steam part A, itstrikes the concave face of the bucket in the rin G on the disk F, andmoves said rring dis and shaft around; the steam is then d3 against theconcave face of the buckets in the stationary ring '0. The buckets inthe ringv- Oidefiects the steam into the first direction, and it strikesthe concave faces of the buckets in the ring .G on the disk F from whichit enters the enlarged ends of the three series of apertures D in thefixed diaphragm D, through which it passes in the same direction asthrough the art A, and strikes the concave faces of the buckets in thering G on the disk F asses into the buckets of the fixed ring G, isthereby deflected to strike the concave faces of the buckets in the ringG on the disk F and from there passes out through the exhaust A as shownin Fig. 5.

It is obvious that instead of a single diaphragm and two series ofmoving and sta-.

tionary bucket rings, the number'of series may be made to suit thepurpose and power for which the engine is particularly constructed.

What I claim and desire to secure by Letters Patent is:

1. A turbine steam engine consisting oi" two end plates havingcorresponding internal projecting rings, and a steam and exhaust portthrough said opposite rings; a shaft revolubly sup orted in the centerof said plates adapte to support a pulley; a series of disks secured onsaid shaft between said ada ted to fit between each pair of rings on saidisks and to register therewith; a diaphragm secured on one of saidrings of said cylindrical part intermediate of the other rin therein,said diaphragm being adapted to t between two of said bucket rings onsaid disks, and having a series of diagonal steam ports adapted toregister with said bucket rings as described.

2. In a turbine engine, the combination with an inclosing case, havininlet and exhaust ports; a shaft rotata ly supported therein; diskssecured on said shaft within said case; a bucket ring secured on each ofsaid disks spaced from each other, and a double series ofjfixed bucketrings secured radially in said case-between said rings on said disks;ofa diaphragm separating said series of fixed bucket rings, salddiaphragm being secured to said case between two of said disk rings andhavin steam ports adapted to register with sai rings on said disks andcase. 1

3. In a turbine en ine, a plurality of rotatable and fixed buc ct rings,each of said rings consisting of a flanged art havin peripheral holes, aseries of hue ets shoul ered to fit said holes and secured therein, eachof said buckets having a vertical concave face and a convex back, saidface and back ex-

